How to Manage Pests
UC Pest Management Guidelines
Silverleaf whiteflies are small insects about 0.06 inch long. The body and wings of adults are covered with a fine, whitish powdery wax, opaque in appearance. Whiteflies colonize on the underside of leaves. Adults and eggs are commonly found on the lower surface of younger leaves, and the scalelike nymphal stages on somewhat older leaves. Clouds of small white insects fly up when plants are disturbed.
Silverleaf whiteflies generally are not a serious problem in beans. When present, infestations are frequently restricted to small areas and to the field edge. Infested leaves will be slightly curled and copious quantities of honeydew may be deposited on leaves, resulting in a sticky, shiny appearance.
UC IPM Pest Management Guidelines: Dry